blob: 2a6ac47aac4fb8e34a948ed2c8debeefd9cf9947 [file] [log] [blame]
* Copyright 2011 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "SkPixelXorXfermode.h"
#include "SkColorPriv.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
#include "SkString.h"
// we always return an opaque color, 'cause I don't know what to do with
// the alpha-component and still return a valid premultiplied color.
SkPMColor SkPixelXorXfermode::xferColor(SkPMColor src, SkPMColor dst) const {
SkPMColor res = src ^ dst ^ fOpColor;
res |= (SK_A32_MASK << SK_A32_SHIFT); // force it to be opaque
return res;
void SkPixelXorXfermode::flatten(SkWriteBuffer& wb) const {
SkFlattenable* SkPixelXorXfermode::CreateProc(SkReadBuffer& buffer) {
return Create(buffer.readColor());
void SkPixelXorXfermode::toString(SkString* str) const {
str->append("SkPixelXorXfermode: ");